They are a species of Pokémon found in Copper and Amethyst.
|Evolves to||Oillution (Fire Stone)|
|Wild Hold Item||Oil Can|
They look like a small oil bubble on the ground, surrounded by a small puddle of oil. They have big eyes with red/purple pupils.
Females have purple pupils, while Males have red pupils.
They can hold things with their sticky oil. As an oil-based Pokémon, they can shoot fire at enemies, and as oil is toxic, they can severely poison a Pokémon.
They are considered a nuisence to Pokémon Rangers, as a whole swarm of them can pollute a whole lake. They do not mean to cause trouble, but their presence causes pollution.
They live in oil rigs and in lakes.
They eat the nutrients from the water, until it is covered by oil.
Their name comes from Oil and Sludge.